Pumps – Convertible to apparatus of a different class
Patent
1976-07-19
1978-02-28
Freeh, William L.
Pumps
Convertible to apparatus of a different class
417238, 2411011, 415121R, 415127, F04B 4100, B02C 1912, F01D 2500
Patent
active
040764605
ABSTRACT:
Portable lawn care apparatus is disclosed which includes attachment assemblies for converting to a mobile vacuum, a shredder/chipper, a blower or a stationary vacuum with a hand-operated flexible hose.
REFERENCES:
patent: 694588 (1902-03-01), Tyler
patent: 1297191 (1919-03-01), Lepley
patent: 1697918 (1929-01-01), Keefer
patent: 2646934 (1953-07-01), Sandor
patent: 2675660 (1954-04-01), Barnard
patent: 3241173 (1966-03-01), Finn
patent: 3618157 (1971-11-01), Bassin
patent: 3688479 (1972-09-01), Martinson
patent: 3968938 (1976-07-01), Ruhl
Browne Robert E.
Freeh William L.
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